Event: Division 3

PDF Excel

Opponent	Rating	Result
Jo Carthew	0	0 - 1
Ian Goodyer	1595	0 - 1
Keith C Osborne	1359	0 - 1
Julie L Denning	1584	0 - 1
Susan E Chadwick	1564	0 - 1
Roger Waddingham	1497	½ - ½
Derek Cosens	1614	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

973 = (9213 + 400 * (0 - 6)) / 7)